Themis, Prometheus complete first hot-fire tests in France

Published by NASASpaceflight on 06/23/2023 UTC

Europe has just completed the first successful hot-fire test of its reusable Prometheus engine integrated with the Themis first-stage demonstrator at the ArianeGroup site in Vernon, France. The hot-fire test consisted of Prometheus performing a 12-second burn on the Themis demonstrator on June 22, 2023.

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